Minolta EP4000 General, Mechanical/Electrical

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

EP5000/EP4000

GENERAL,

MECHANICAL/

ELECTRICAL

1156SBG000AA

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

i

1149SBG000BA

CONTENTS

GENERAL

1. SPECIFICATIONS G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. PRECAUTIONS FOR INSTALLATION G-4. . . . . . . . . . . . . . . . . . . . . . . . .

3. PRECAUTIONS FOR USE G-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. HANDLING OF THE CONSUMABLES G-6. . . . . . . . . . . . . . . . . . . . . . . . .

5. SYSTEM OPTIONS G-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1156SBG000BA

MECHANICAL/ELECTRICAL

1. CROSS-SECTIONAL VIEW M-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. COPY PROCESS M-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. DRIVE SYSTEM M-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. SEQUENTIAL EXPLANATION M-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5. WATCHDOG (CPU OVERRUN MONITOR) FUNCTION M-8. . . . . . . . . .

5-1. Configuration M-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2. Watchdog Function Post-Processing M-9. . . . . . . . . . . . . . . . . . . . . .

6. MALFUNCTION BYPASS FUNCTION M-10. . . . . . . . . . . . . . . . . . . . . . . . .

7. IMAGE STABILIZATION SYSTEM M-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1. AIDC Sensor M-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2. Image Stabilization Control Processing Timing M-13. . . . . . . . . . . . . .

7-3. Details of Image Stabilization Controls M-14. . . . . . . . . . . . . . . . . . . . .

8. PC DRUM M-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9. DRUM CHARGING M-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-1. Ozone Filter M-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.IMAGE ERASE LAMP M-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11. OPTICAL SECTION M-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-1. Exposure Lamp M-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-2. AE Sensor M-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-3. Lamp Reflectors M-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-4. Aperture Plates M-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-5. Scanner and 2nd/3rd Mirror Carriage Movement M-28. . . . . . . . . . .

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

ii

CONTENTS

11-6. Lens Movement M-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-7. 4th/5th Mirrors Carriage Movement M-31. . . . . . . . . . . . . . . . . . . . . .

11-8. Original Glass Cooling Fan M-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12.ORIGINAL SIZE DETECTING SYSTEM M-33. . . . . . . . . . . . . . . . . . . . . . . .

12-1. Identification of Original Size Detecting Sensors M-33. . . . . . . . . . .

12-2. Original Size Detecting Operation M-33. . . . . . . . . . . . . . . . . . . . . . . .

12-3. Sensor Locations M-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-4. Size Detection M-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-5. Original Size Detection Timing M-36. . . . . . . . . . . . . . . . . . . . . . . . . . .

13.DEVELOPMENT M-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13-1. Developing Unit Drive Mechanism M-38. . . . . . . . . . . . . . . . . . . . . . .

13-2. Magnet Roller M-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13-3. Developing Bias M-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13-4. Doctor Blade M-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13-5. ATDC Sensor M-42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13-6. Sub Hopper Toner Replenishing Mechanism M-44. . . . . . . . . . . . . .

13-7. Sub Hopper Toner Empty Detection Control M-45. . . . . . . . . . . . . . .

13-8. Main Hopper Toner Replenishing Mechanism M-46. . . . . . . . . . . . . .

13-9. Swing Out/In the Main Hopper M-47. . . . . . . . . . . . . . . . . . . . . . . . . . .

14.IMAGE TRANSFER AND PAPER SEPARATION M-48. . . . . . . . . . . . . . . .

14-1. Ozone Filter M-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15.PAPER SEPARATOR FINGERS M-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16.CLEANING UNIT M-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16-1. Spent Toner Collection M-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16-2. Cleaning Bias (Optional) M-56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17.MAIN ERASE LAMP M-57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18.PAPER TAKE-UP/FEED SECTION M-58. . . . . . . . . . . . . . . . . . . . . . . . . . . .

18-1. Drawer-in-Position Detection M-59. . . . . . . . . . . . . . . . . . . . . . . . . . . .

18-2. Drawer Paper Lifting/Lowering Mechanism/Control M-60. . . . . . . . .

18-3. Paper Level Detection M-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18-4. Paper Empty Detection M-66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18-5. Universal Tray (2nd Drawer) Paper Size Detection M-68. . . . . . . . .

18-6. Paper Take-Up Mechanism M-71. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18-7. Paper Take-Up Control M-74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19.MULTI BYPASS TABLE M-76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19-1. Paper Take-Up Mechanism M-77. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19-2. Paper Separating Mechanism M-78. . . . . . . . . . . . . . . . . . . . . . . . . . .

19-3. Paper Empty Detection M-79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

iii

CONTENTS

20.VERTICAL PAPER TRANSPORT M-80. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21.SYNCHRONIZING ROLLERS M-81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21-1. Synchronizing Roller Drive Mechanism M-82. . . . . . . . . . . . . . . . . . .

21-2. Paper Dust Remover M-82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21-3. Synchronizing Roller Control M-83. . . . . . . . . . . . . . . . . . . . . . . . . . . .

21-4. Prevention of Low Image Density on Copy M-84. . . . . . . . . . . . . . . .

22.PAPER TRANSPORT M-86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22-1. Suction Belt Drive Mechanism M-87. . . . . . . . . . . . . . . . . . . . . . . . . . .

23.FUSING UNIT M-88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23-1. Fusing Temperature Control M-89. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23-2. Fusing Rollers Pressure Mechanism M-90. . . . . . . . . . . . . . . . . . . . .

23-3. Cleaning Roller M-91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23-4. Paper Separator Fingers M-92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23-5. Fusing Section Cooling Fan M-93. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24.EXIT UNIT M-94. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24-1. Detection of Left Upper Door in Position M-95. . . . . . . . . . . . . . . . . .

25.DEHUMIDIFYING SWITCH M-96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26.MEMORY BACKUP M-97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

1151SBG000D

SAFETY INFORMATION

ALL Areas

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type

recommended by the manufacturer.

Dispose of used batteries according

to the manufacturer’s instructions.

Denmark

ADVARSEL!

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering.

Udskiftning må kun ske med batteri

af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandøren.

Norway

ADVARSEL

Eksplosjonsfare ved feilaktig skifte av batteri.

Benytt samme batteritype eller en tilsvarende

type anbefalt av apparatfabrikanten.

Brukte batterier kasseres i henhold til fabrikantens

instruksjoner.

Sweden

VARNING

Explosionsfara vid felaktigt batteribyte.

Använd samma batterityp eller en ekvivalent

typ som rekommenderas av apparattillverkaren.

Kassera använt batteri enligt fabrikantens

instruktion.

Finland

VAROITUS

Paristo voi räjähtää, jos se on virheellisesti asennettu.

Vaihda paristo ainoastaan laitevalmistajan suosittelemaan

tyyppiin. Hävitä Käytetty paristo valmistajan ohjeiden

mukaisesti.

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

GENERAL

1151SBG000CA

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-1

1156SBG0100A

SPECIFICATIONS1

TYPE : Console (with Stationary Platen)

PHOTOCONDUCTOR : Organic Photoconductor

COPYING SYSTEM : Electrostatic Dry Powdered Image Transfer to Plain

Paper

PAPER FEEDING : 3-Way Feeding 1st Drawer: Fixed Paper Size Tray

SYSTEM (500 sheets of paper,

USA Area: 550 sheets of

paper)

2nd Drawer: Universal Tray

(500 sheets of paper, USA

Area: 550 sheets of paper)

Multi Bypass Table

(50 sheets of paper)

EXPOSURE SYSTEM : Mirror Scanning, Slit Exposure

DEVELOPING SYSTEM : New Micro-Toning System

CHARGING SYSTEM : Comb Electrode DC Negative Corona with Scorotron

System

IMAGE TRANSFER : Visible Image Transfer by means of a Single-Wire DC

SYSTEM Negative Corona with Corotron System

PAPER SEPARATING : Single-Wire AC Corona with Corotron System, plus

SYSTEM Paper Separator Finger

FUSING SYSTEM : Heat Roller

PAPER DISCHARGING : Charge Neutralizing Brush

SYSTEM

MAXIMUM ORIGINAL : Metric-A3L; Inch-11” 17”L (L: Lengthwise)

SIZE

COPY MEDIUM

1st Drawer

(Automatic

feeding)

2nd Drawer

(Automatic

feeding)

Multi Bypass

Table

Plain paper

(60 to 90 g/m

2

)

f f f

Translucent paper – – f

dium

Transparencies – – f

Me

Thick paper

(91 to 157 g/m

2

)

– – f

Recycled paper f f f

sions

Maximum

(Width  Length)

297  432 mm 297  432 mm 297  432 mm

Dimens

Minimum

(Width  Length)

140  182 mm 140  182 mm 100  140 mm

f: Permissible –: Not permissible

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-2

MULTIPLE COPIES : 1 to 999

WARMING-UP TIME : 240 sec. or less with room temperature of 20°C and rated

power voltage

FIRST COPY TIME : A4C or 8-1/2” 11”C: 3.7 sec. or less

(in Full size Mode using 1st Drawer)

CONTINUOUS COPY SPEED (copies/min.): Fed from 1st Drawer

EP5000:

Area

Zoom Ratio

Size

1.000

Metric

A3L

A4L

A4C

B4L

28

37

50

31

Area

Zoom Ratio

Size

1.000

Inch

11” 17” (L)

8-1/2” 11” (L)

8-1/2” 11” (C)

28

39

50

L: Lengthwise; C: Crosswise

EP4000:

Area

Zoom Ratio

Size

1.000

Metric

A3L

A4L

A4C

B4L

26

34

40

29

Area

Zoom Ratio

Size

1.000

Inch

11” 17” (L)

8-1/2” 11” (L)

8-1/2” 11” (C)

25

35

40

L: Lengthwise; C: Crosswise

ZOOM RATIOS

Metric Inch

Full Size 1.000 1.000

Fixed

Reduction

0.816

0.707

0.500

0.785

0.733

0.647

0.500

Enlargement

1.154

1.414

2.000

1.214

1.294

1.545

2.000

Variable 50% to 200% (in 0.1% increments)

LENS : Through Lens (F = 6, f = 190 mm)

EXPOSURE LAMP : Halogen Frost Tube Lamp

FUSING : 200°C

TEMPERATURE

Area

Mode

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-3

POWER/CURRENT CONSUMPTION (Copier Only)

EP5000:

Voltage

Exposure

Lamp

(Rating)

Fusing

Heater

Lamp

(Rating)

Max. Power

Consumption

115 V

1390 W

120 V

80 V 115/120 V

1450 W

127 V

262 W 950 W

1480 W

220 V 160 V 220/240 V

1410 W

240 V 290 W 1000 W

1550 W

EP4000:

Voltage

Exposure

Lamp

(Rating)

Fusing

Heater

Lamp

(Rating)

Max. Power

Consumption

115 V

1250 W

120 V

80 V 115/120 V

1330 W

127 V

262 W 900 W

1400 W

220 V 160 V 220/240 V

1360 W

240 V 290 W 950 W

1500 W

POWER : 115 V, 120 V, 127 V, 220-240 V; 50/60 Hz

REQUIREMENTS

ENVIRONMENTAL CONDITIONS

Temperature 10 to 30°C with a fluctuation of 10°C or less per hour

Humidity 15 to 85% RH with a fluctuation of 10% RH or less per hour

Ambient Illumination 3,000 lux or less

Levelness 1° (1.75 mm/100 mm)

DIMENSIONS : Width .... 620 mm (24-1/2”)

(Copier Only) Depth .... 740 mm (27”)

Height ... 960 mm (37-3/4”) (including Original Cover and

Paper Feed Cabinet)

WEIGHT : EP5000: (with Paper Feed Cabinet)

123.5kg (272-1/4lbs)

EP4000: (with Paper Feed Cabinet)

122.0kg (269lbs)

*excluding the Copy Tray, starter, toner, and paper

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-4

1149SBG0200A

PRECAUTIONS FOR INSTALLATION2

J Installation Site

To ensure safety and utmost performance of the copier, the copier should NOT be

used in a place:

F Where it will be subjected to extremely high or low temperature or humidity.

F Which is exposed to direct sunlight.

F Which is in the direct air stream of an air conditioner, heater or ventilator.

F Which puts the operator in the direct stream of exhaust from the copier.

F Which has poor ventilation.

F Where ammonia gas might be generated.

F Which does not have a stable, level floor.

F Where it will be subjected to sudden fluctuations in either temperature or humidity.

If a cold room is quickly heated, condensation forms inside the copier, resulting in

blank spots in the copy.

F Which is near any kind of heating device.

F Where it may be splashed with water.

F Which is dirty or where it will receive undue vibration.

F Which is near volatile flammables or curtains.

J Power Source

Use an outlet with a capacity of 115/120/127V, 1480W or more, or 220-240V, 1550W

or more.

F If any other electrical equipment is sourced from the same power outlet, make sure

that the capacity of the outlet is not exceeded.

F Use a power source with little voltage fluctuation.

F Never connect by means of a multiple socket any other appliances or machines

to the outlet being used for the copier.

F Make the following checks at frequent intervals:

D Is the power plug abnormally hot?

D Are there any cracks or scrapes in the cord?

D Has the power plug been inserted fully into the outlet?

D Does something, including the copier itself, ride on the power cord?

F Ensure that the copier does not ride on the power cord or communications cable

of other electrical equipment, and that it does not become wedged into or under-

neath the mechanism.

J Grounding

To prevent receiving electrical shocks in the case of electrical leakage, always ground

the copier.

F Connect the grounding wire to:

D The ground terminal of the outlet.

D A grounding contact which complies with the local electrical standards.

F Never connect the grounding wire to a gas pipe, the grounding wire for a telephone,

or a water pipe.

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-5

1149SBG0300A

PRECAUTIONS FOR USE3

To ensure that the copier is used in an optimum condition, observe the following pre-

cautions.

F Never place a heavy object on the copier or subject the copier to shocks.

F Insert the power plug all the way into the outlet.

F Do not attempt to remove any panel or cover which is secured while the copier is

making copies.

F Do not turn OFF the Power Switch while the copier is making copies.

F Provide good ventilation when making a large number of copies continuously.

F Never use flammable sprays near the copier.

F If the copier becomes inordinately hot or produces abnormal noise, turn it OFF and

unplug it.

F Do not turn ON the Power Switch at the same time when you plug the power cord

into the outlet.

F When unplugging the power cord, do not pull on the cord; hold the plug and pull

it out.

F Do not bring any magnetized object near the copier.

F Do not place a vase or vessel containing water on the copier.

F Be sure to turn OFF the Power Switch at the end of the workday or upon power

failure.

F Use care not to drop paper clips, staples, or other small pieces of metal into the

copier.

J Operating Environment

The operating environmental requirements of the copier are as follows.

D Temperature: 10°C to 30°C with a fluctuation of 10°C per hour

D Humidity: 15% to 85% RH with a fluctuation of 10% RH per hour

J Power Requirements

The power source voltage requirements are as follows.

D Voltage Fluctuation: AC115/120/127/220-240V

"10% (Copying performance assured)

)6%, –10% (Only AC 127V)

–15% (Paper feeding performance assured)

D Frequency Fluctuation: 50/60 Hz "0.3%

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-6

1151SBG0400A

HANDLING OF THE CONSUMABLES4

Before using any consumables, always read the label on its container carefully.

F Use the right toner. The applicable copier model name is indicated on the Toner

Bottle.

F Paper can to be easily damaged by dampness. To prevent absorption of moisture,

store paper, which has been removed from its wrapper but not loaded into the

Drawer, in a sealed plastic bag in a cool, dark place.

F Keep consumables out of the reach of children.

F Do not touch the PC Drum with bare hands.

F Store the paper, toner, and other consumables in a place free from direct sunlight

and away from any heating apparatus.

F The same sized paper is of two kinds, short grain and long grain. Short grain paper

should only be fed through the copier crosswise, long grain paper should only be

fed lengthwise.

F If your hands become soiled with toner, wash them with soap and water

immediately.

F Do not throw away any used consumables (PC Drum, starter, toner, etc.). They are

to be collected.

NOTE

Do not burn, bury in the ground, or throw into the water any

consumables (PC Drum, starter, toner, etc.).

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

G-7

1156SBG0500A

SYSTEM OPTIONS5

1, 2

7, 8

6

5

4

3

9,10

11

12

1149M026AA

1138O525AA

1136O061AA

1134O005AA

13

1. Automatic Document Feeder AF-5

2. Duplexing Document Feeder AFR-13

3. Paper Feed Cabinet PF-105

4. Duplex Cabinet PF-5D

5. Paper Feed Cabinet PF-205

6. Duplex Unit AD-9

7. 10-Bin Sorter S-106

8. 10-Bin Staple Sorter ST-104

9. 20-Bin Sorter S-208

10. 20-Bin Staple Sorter ST-211

11. Data Terminal

12. Data Controller D-102

13. Large Capacity Cassette C-301

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

MECHANICAL/

ELECTRICAL

1151SBM000CA

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

M-1

1156SBM0100A

CROSS-SECTIONAL VIEW1

2

1

3

4

5

67

8

9

10

23

22 21

24

20

18

25

17

16

11

12

13

14

15

1134M001AB

19

26

27

28

29

30

1. 3rd Mirror

2. 2nd Mirror

3. 1st Mirror

4. Exposure Lamp

5. Ventilation Fan Motor

6. Ozone Filter

7. Lens

8. Main Erase Lamp

9. Cleaning Blade

10. PC Drum Charge Corona

11. PC Drum

12. 6th Mirror

13. Image Erase Lamp

14. 4th Mirror

15. 5th Mirror

16. Sub Hopper

17. Transport Roller

18. Manual Bypass Take-Up Roll

19. Upper Vertical Transport Roller

20. Lower Vertical Transport Roller

21. 2nd Drawer Paper Take-Up Roll

22. 1st Drawer Paper Take-Up Roll

23. Synchronizing Roller

24. Image Transfer/Paper Separa-

tor Coronas

25. Main Drive Motor

26. Suction Belt

27. Fusing Roller

28. 1st Paper Exit Roller

29. 2nd Paper Exit Roller

30. Exit/Duplex Switching Guide

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

M-2

1156SBM0200A

COPY PROCESS2

1. PC DRUM

2. DRUM CHARGING

3. IMAGE ERASE

4. EXPOSURE

5. DEVELOPING

6. PAPER FEEDING

7. IMAGE TRANSFER

8. PAPER SEPARATION

9. CLEANING

10. MAIN ERASE

11. TRANSPORT

12. FUSING

13. PAPER EXIT

159

10

23

4

6

13 12 11 8 7

MULTI BYPASS

TABLE

1. PC Drum

The PC Drum is an aluminum cylinder coated with a photosensitive semiconductor.

It is used as the medium on which a visible developed image of the original is formed.

(For more details, see “8. PC DRUM”.)

2. Drum Charging

The PC Drum Charge Corona Unit is equipped with a Comb Electrode and a Scorotron Grid to

deposit a uniform negative charge across the entire surface of the PC Drum.

(For more details, see “9. DRUM CHARGING”.)

3. Image Erase

Any areas of charge which are not to be developed are neutralized by lighting up LEDs.

(For more details, see “10. IMAGE ERASE LAMP”.)

4. Exposure

Light from the Exposure Lamp reflected off the original is guided to the surface of the PC

Drum and reduces the level of the negative charges, thereby forming an electrostatic latent

image.

(For more details, see “11. OPTICAL SECTION”.)

5. Developing

Toner positively charged in the Developer Mixing Chamber is attracted onto the electrostatic

latent image changing it to a visible, developed image. A DC negative bias voltage is applied

to the Sleeve/Magnet Roller to prevent toner from being attracted onto those areas of the PC

Drum which correspond to the background areas of the original.

(For more details, see “13. DEVELOPMENT”.)

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

M-3

6. Paper Feeding

Paper is fed either automatically from the 1st or 2nd Drawer, or manually via the Multi Bypass

Table or Manual Bypass Table. Paper separation is accomplished by the torque limiter fitted to

the Paper Separator Roll.

(For more details, see “18. PAPER TAKE-UP/FEED SECTION”.)

7. Image Transfer

The single-wire Image Transfer Corona Unit applies a DC negative corona emission to the

underside of the paper, thereby attracting toner onto the surface of the paper.

(For more details, see “14. IMAGE TRANSFER AND PAPER SEPARATION”.)

8. Paper Separation

The single-wire Paper Separator Corona Unit applies an AC corona emission to the underside

of the paper to neutralize the paper. In addition, mechanical paper separation is provided by

the two PC Drum Paper Separator Fingers fitted to the Imaging Unit.

(For more details, see “14. IMAGE TRANSFER AND PAPER SEPARATION”.)

9. Cleaning

Residual toner on the surface of the PC Drum is scraped off by the Cleaning Blade.

(For more details, see “16. CLEANING UNIT”.)

10. Main Erase

Light from the Main Erase Lamp neutralizes any surface potential remaining on the surface of

the PC Drum after cleaning.

(For more details, see “17. MAIN ERASE LAMP”.)

11. Transport

The paper is fed to the Fusing Unit by the Suction Belts.

(For more details, see “22. PAPER TRANSPORT”.)

12. Fusing

The developed image is permanently fused to the paper by a combination of heat and

pressure applied by the Upper and Lower Fusing Rollers.

(For more details, see “23. FUSING UNIT”.)

13. Paper Exit

After the fusing process the paper is fed out by the Paper Exit Roller onto the Copy Tray.

(For more details, see “24. EXIT UNIT”.)

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

M-4

1156SBM0300A

DRIVE SYSTEM3

The Main Drive Motor provides drive for the entire mechanism of the copier. To help mini-

mize operating noise, timing belts and plastic gears are used in large numbers for the

drive train parts.

1136M002AA

2nd Paper Exit Roller Drive

Upper Fusing Roller

Drive Gear

Toner Conveying Coil Drive

(on PC Unit)

Main Drive Motor

Synchronizing Roller Clutch

Paper Transport Clutch

Lower Vertical Transport Roller Drive

Upper Vertical

Transport Roller

Drive

Manual Feed Paper

Take-Up Clutch

Developing Section Drive

PC Drum Drive

Suction Unit Drive

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

M-5

1156SBM0400A

SEQUENTIAL EXPLANATION4

A The power cord is plugged into the outlet.

ON

Paper Dehumidifying

Heater H2

Drum Dehumidifying

Heater H3

DC Power Supply Unit PU1 outputs DC24V for dehumidifying heating.

Only when Drum Dehumidifying

Switch S3 and Paper Dehumidi-

fying Switch S12 are ON

B Power Switch S1 is turned ON.

OFF

ON

H2

PU1 outputs DC24V and DC 5V.

ON

Fusing Section Cooling Fan Motor M15

ON

Control panel display

ON

Suction Fan Motor M4 turns at half speed.

Approx. 1sec.

Fusing Heater Lamp H1

ON

Power Supply Board PWB-C outputs DC 24V.

(DC24V line: ON)

ON

Master Board PWB-A outputs DC4.7V and DC12V.

The Lens is detected at the home position.

The Mirror is detected at the home position.

The Scanner makes its initial motion.

The Lens is detected at the full size position.

The Mirror is detected at the full size position.

The surface temperature of the Upper Fusing Roller reaches 165°C.

ON

Main Drive Motor M1 and Original Glass Cooling Fan Motor M5

start predrive.

ON

Ventilation Fan Motor M3

ON

M4 turns at full speed.

ON

Developing Bias/Paper Separator Corona

Approx. 100msec.

ON

Image Erase Lamp LA2

Approx.

200msec.

ON

PC Drum Charge Corona/

Image Transfer Corona

M4 turns at full speed.

Main Erase Lamp LA3

To À on next page

*1

* Figure in ( ) are the timer values for EP5000.

Interleaf EP5000/EP4000 GENERAL, MECHANICAL/ELECTRICAL

97.04.01

M-6

C The Start Key is pressed.

After the lapse of 30sec.

or 15sec.

*30sec. if the Upper Fusing Roller surface tempera-

ture is less than 165°C when S1 is turned ON and

15sec. if the surface temperature is 165°C or high-

er.

À

Approx. 5msec.

OFF

PC Drum Charge Corona/Image

Transfer Corona

Approx. 160msec.

OFF

LA2

Approx. 285msec.

OFF

M1/M5

OFF

LA3

Approx. 150msec.

(500msec.)

OFF

Developing Bias/Pa-

per Separator Corona

Approx. 4850msec.

(4500msec.)

M4 turns at half speed.

M3

*2

The components are energized in order of *1 on the preceding page.

Approx. *3

ON

Exposure Lamp LA1

OFF

Fusing Section Cooling Fan Motor M15

ON

Paper Transport Clutch CL1

ON

1st Drawer Paper Take-Up Motor M11

1st Drawer Vertical Transport Sensor PC63 is blocked ( ).

L

Approx. 5msec.

OFF

M11

Paper Leading Edge Detecting Sensor PC55 is blocked ( ).

L

Approx. 45msec.

OFF

CL1

D SCP Board PWB-F outputs a LOW BASE signal to Master Board PWB-A.

Approx. 75msec.

(65msec.)

OFF

LA3...Leading edge erase

*3 : Varies for different

drawers.

Page is loading ...

Minolta EP4000, EP5000 General, Mechanical/Electrical

Related papers

Other documents